61 static int tda8083_writereg (struct tda8083_state* state, u8 reg, u8 data)  in tda8083_writereg()  argument
65 	struct i2c_msg msg = { .addr = state->config->demod_address, .flags = 0, .buf = buf, .len = 2 };  in tda8083_writereg()
67 	ret = i2c_transfer(state->i2c, &msg, 1);  in tda8083_writereg()
76 static int tda8083_readregs (struct tda8083_state* state, u8 reg1, u8 *b, u8 len)  in tda8083_readregs()  argument
79 …struct i2c_msg msg [] = { { .addr = state->config->demod_address, .flags = 0, .buf = &reg1, .len =…  in tda8083_readregs()
80 			   { .addr = state->config->demod_address, .flags = I2C_M_RD, .buf = b, .len = len } };  in tda8083_readregs()
82 	ret = i2c_transfer(state->i2c, msg, 2);  in tda8083_readregs()
91 static inline u8 tda8083_readreg (struct tda8083_state* state, u8 reg)  in tda8083_readreg()  argument
95 	tda8083_readregs (state, reg, &val, 1);  in tda8083_readreg()
100 static int tda8083_set_inversion(struct tda8083_state *state,  in tda8083_set_inversion()  argument
110 static int tda8083_set_fec(struct tda8083_state *state, enum fe_code_rate fec)  in tda8083_set_fec()  argument
113 		return tda8083_writereg (state, 0x07, 0xff);  in tda8083_set_fec()
116 		return tda8083_writereg (state, 0x07, 1 << (FEC_8_9 - fec));  in tda8083_set_fec()
121 static enum fe_code_rate tda8083_get_fec(struct tda8083_state *state)  in tda8083_get_fec()  argument
129 	index = tda8083_readreg(state, 0x0e) & 0x07;  in tda8083_get_fec()
134 static int tda8083_set_symbolrate (struct tda8083_state* state, u32 srate)  in tda8083_set_symbolrate()  argument
162 	tda8083_writereg (state, 0x05, filter);  in tda8083_set_symbolrate()
163 	tda8083_writereg (state, 0x02, (ratio >> 16) & 0xff);  in tda8083_set_symbolrate()
164 	tda8083_writereg (state, 0x03, (ratio >>  8) & 0xff);  in tda8083_set_symbolrate()
165 	tda8083_writereg (state, 0x04, (ratio      ) & 0xff);  in tda8083_set_symbolrate()
167 	tda8083_writereg (state, 0x00, 0x3c);  in tda8083_set_symbolrate()
168 	tda8083_writereg (state, 0x00, 0x04);  in tda8083_set_symbolrate()
173 static void tda8083_wait_diseqc_fifo (struct tda8083_state* state, int timeout)  in tda8083_wait_diseqc_fifo()  argument
178 	       !(tda8083_readreg(state, 0x02) & 0x80))  in tda8083_wait_diseqc_fifo()
184 static int tda8083_set_tone(struct tda8083_state *state,  in tda8083_set_tone()  argument
187 	tda8083_writereg (state, 0x26, 0xf1);  in tda8083_set_tone()
191 		return tda8083_writereg (state, 0x29, 0x00);  in tda8083_set_tone()
193 		return tda8083_writereg (state, 0x29, 0x80);  in tda8083_set_tone()
199 static int tda8083_set_voltage(struct tda8083_state *state,  in tda8083_set_voltage()  argument
204 		return tda8083_writereg (state, 0x20, 0x00);  in tda8083_set_voltage()
206 		return tda8083_writereg (state, 0x20, 0x11);  in tda8083_set_voltage()
212 static int tda8083_send_diseqc_burst(struct tda8083_state *state,  in tda8083_send_diseqc_burst()  argument
217 		tda8083_writereg (state, 0x29, (5 << 2));  /* send burst A */  in tda8083_send_diseqc_burst()
220 		tda8083_writereg (state, 0x29, (7 << 2));  /* send B */  in tda8083_send_diseqc_burst()
226 	tda8083_wait_diseqc_fifo (state, 100);  in tda8083_send_diseqc_burst()
234 	struct tda8083_state* state = fe->demodulator_priv;  in tda8083_send_diseqc_msg()  local
237 	tda8083_writereg (state, 0x29, (m->msg_len - 3) | (1 << 2)); /* enable */  in tda8083_send_diseqc_msg()
240 		tda8083_writereg (state, 0x23 + i, m->msg[i]);  in tda8083_send_diseqc_msg()
242 	tda8083_writereg (state, 0x29, (m->msg_len - 3) | (3 << 2)); /* send!! */  in tda8083_send_diseqc_msg()
244 	tda8083_wait_diseqc_fifo (state, 100);  in tda8083_send_diseqc_msg()
252 	struct tda8083_state* state = fe->demodulator_priv;  in tda8083_read_status()  local
254 	u8 signal = ~tda8083_readreg (state, 0x01);  in tda8083_read_status()
255 	u8 sync = tda8083_readreg (state, 0x02);  in tda8083_read_status()
282 	struct tda8083_state* state = fe->demodulator_priv;  in tda8083_read_ber()  local
286 	if ((ret = tda8083_readregs(state, 0x0b, buf, sizeof(buf))))  in tda8083_read_ber()
296 	struct tda8083_state* state = fe->demodulator_priv;  in tda8083_read_signal_strength()  local
298 	u8 signal = ~tda8083_readreg (state, 0x01);  in tda8083_read_signal_strength()
306 	struct tda8083_state* state = fe->demodulator_priv;  in tda8083_read_snr()  local
308 	u8 _snr = tda8083_readreg (state, 0x08);  in tda8083_read_snr()
316 	struct tda8083_state* state = fe->demodulator_priv;  in tda8083_read_ucblocks()  local
318 	*ucblocks = tda8083_readreg(state, 0x0f);  in tda8083_read_ucblocks()
328 	struct tda8083_state* state = fe->demodulator_priv;  in tda8083_set_frontend()  local
335 	tda8083_set_inversion (state, p->inversion);  in tda8083_set_frontend()
336 	tda8083_set_fec(state, p->fec_inner);  in tda8083_set_frontend()
337 	tda8083_set_symbolrate(state, p->symbol_rate);  in tda8083_set_frontend()
339 	tda8083_writereg (state, 0x00, 0x3c);  in tda8083_set_frontend()
340 	tda8083_writereg (state, 0x00, 0x04);  in tda8083_set_frontend()
348 	struct tda8083_state* state = fe->demodulator_priv;  in tda8083_get_frontend()  local
352 	p->inversion = (tda8083_readreg (state, 0x0e) & 0x80) ?  in tda8083_get_frontend()
354 	p->fec_inner = tda8083_get_fec(state);  in tda8083_get_frontend()
362 	struct tda8083_state* state = fe->demodulator_priv;  in tda8083_sleep()  local
364 	tda8083_writereg (state, 0x00, 0x02);  in tda8083_sleep()
370 	struct tda8083_state* state = fe->demodulator_priv;  in tda8083_init()  local
374 		tda8083_writereg (state, i, tda8083_init_tab[i]);  in tda8083_init()
376 	tda8083_writereg (state, 0x00, 0x3c);  in tda8083_init()
377 	tda8083_writereg (state, 0x00, 0x04);  in tda8083_init()
385 	struct tda8083_state* state = fe->demodulator_priv;  in tda8083_diseqc_send_burst()  local
387 	tda8083_send_diseqc_burst (state, burst);  in tda8083_diseqc_send_burst()
388 	tda8083_writereg (state, 0x00, 0x3c);  in tda8083_diseqc_send_burst()
389 	tda8083_writereg (state, 0x00, 0x04);  in tda8083_diseqc_send_burst()
397 	struct tda8083_state* state = fe->demodulator_priv;  in tda8083_diseqc_set_tone()  local
399 	tda8083_set_tone (state, tone);  in tda8083_diseqc_set_tone()
400 	tda8083_writereg (state, 0x00, 0x3c);  in tda8083_diseqc_set_tone()
401 	tda8083_writereg (state, 0x00, 0x04);  in tda8083_diseqc_set_tone()
409 	struct tda8083_state* state = fe->demodulator_priv;  in tda8083_diseqc_set_voltage()  local
411 	tda8083_set_voltage (state, voltage);  in tda8083_diseqc_set_voltage()
412 	tda8083_writereg (state, 0x00, 0x3c);  in tda8083_diseqc_set_voltage()
413 	tda8083_writereg (state, 0x00, 0x04);  in tda8083_diseqc_set_voltage()
420 	struct tda8083_state* state = fe->demodulator_priv;  in tda8083_release()  local
421 	kfree(state);  in tda8083_release()
429 	struct tda8083_state* state = NULL;  in tda8083_attach()  local
432 	state = kzalloc(sizeof(struct tda8083_state), GFP_KERNEL);  in tda8083_attach()
433 	if (state == NULL) goto error;  in tda8083_attach()
436 	state->config = config;  in tda8083_attach()
437 	state->i2c = i2c;  in tda8083_attach()
440 	if ((tda8083_readreg(state, 0x00)) != 0x05) goto error;  in tda8083_attach()
443 	memcpy(&state->frontend.ops, &tda8083_ops, sizeof(struct dvb_frontend_ops));  in tda8083_attach()
444 	state->frontend.demodulator_priv = state;  in tda8083_attach()
445 	return &state->frontend;  in tda8083_attach()
448 	kfree(state);  in tda8083_attach()